./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e6a60ee4460b65708a3f1334ace9766e80adc6f ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:05,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:05,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:05,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:05,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:05,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:05,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:05,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:05,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:05,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:05,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:05,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:05,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:05,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:05,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:05,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:05,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:05,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:05,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:05,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:05,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:05,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:05,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:05,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:05,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:05,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:05,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:05,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:05,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:05,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:05,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:05,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:05,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:05,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:05,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:05,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:05,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:05,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:05,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:05,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:05,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:05,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:05,865 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:05,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:05,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:05,866 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:05,867 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:05,867 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:05,867 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:05,867 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:05,867 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:05,867 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:05,868 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:05,868 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:05,868 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:05,868 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:05,868 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:05,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:05,869 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:05,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:05,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:05,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:05,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:05,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:05,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:05,871 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:05,871 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:05,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:05,871 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:05,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:05,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:05,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:05,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:05,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:05,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:05,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:05,873 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:05,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:05,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:05,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:05,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:05,874 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e6a60ee4460b65708a3f1334ace9766e80adc6f [2021-10-11 02:25:06,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:06,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:06,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:06,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:06,233 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:06,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loops-crafted-1/sumt4.c [2021-10-11 02:25:06,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/data/42ddb816f/ea5bbeb4ada34804bb08ab7c6d171df6/FLAG93821edb0 [2021-10-11 02:25:06,740 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:06,741 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/sv-benchmarks/c/loops-crafted-1/sumt4.c [2021-10-11 02:25:06,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/data/42ddb816f/ea5bbeb4ada34804bb08ab7c6d171df6/FLAG93821edb0 [2021-10-11 02:25:07,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/data/42ddb816f/ea5bbeb4ada34804bb08ab7c6d171df6 [2021-10-11 02:25:07,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:07,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:07,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:07,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:07,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:07,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46ebc83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07, skipping insertion in model container [2021-10-11 02:25:07,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:07,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:07,365 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/sv-benchmarks/c/loops-crafted-1/sumt4.c[403,416] [2021-10-11 02:25:07,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:07,387 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:07,399 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/sv-benchmarks/c/loops-crafted-1/sumt4.c[403,416] [2021-10-11 02:25:07,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:07,419 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:07,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07 WrapperNode [2021-10-11 02:25:07,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:07,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:07,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:07,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:07,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:07,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:07,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:07,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:07,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... [2021-10-11 02:25:07,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:07,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:07,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:07,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:07,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:07,940 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:07,940 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:25:07,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:07 BoogieIcfgContainer [2021-10-11 02:25:07,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:07,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:07,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:07,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:07,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:07" (1/3) ... [2021-10-11 02:25:07,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e6e479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:07, skipping insertion in model container [2021-10-11 02:25:07,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:07" (2/3) ... [2021-10-11 02:25:07,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e6e479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:07, skipping insertion in model container [2021-10-11 02:25:07,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:07" (3/3) ... [2021-10-11 02:25:07,954 INFO L111 eAbstractionObserver]: Analyzing ICFG sumt4.c [2021-10-11 02:25:07,969 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:07,973 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:08,000 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:25:08,025 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:08,025 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:08,026 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:08,026 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:08,026 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:08,026 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:08,027 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:08,027 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:25:08,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:25:08,045 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:08,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:25:08,046 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:08,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:08,052 INFO L82 PathProgramCache]: Analyzing trace with hash 76916839, now seen corresponding path program 1 times [2021-10-11 02:25:08,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:08,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231065916] [2021-10-11 02:25:08,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:08,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231065916] [2021-10-11 02:25:08,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:08,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:08,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623507541] [2021-10-11 02:25:08,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:08,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:08,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:08,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:08,425 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2021-10-11 02:25:08,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:08,485 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-11 02:25:08,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:08,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 02:25:08,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:08,495 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:25:08,495 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:25:08,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:25:08,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:25:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:25:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:25:08,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-11 02:25:08,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:08,591 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:25:08,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:25:08,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:25:08,592 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:08,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:25:08,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:08,592 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:08,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1910380015, now seen corresponding path program 1 times [2021-10-11 02:25:08,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:08,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169583995] [2021-10-11 02:25:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:08,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169583995] [2021-10-11 02:25:08,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162892959] [2021-10-11 02:25:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:09,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 02:25:09,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:09,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:09,314 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2021-10-11 02:25:09,320 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2021-10-11 02:25:09,341 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2021-10-11 02:25:09,372 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:25:09,375 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:25:09,377 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:25:09,383 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:25:09,386 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:25:09,391 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:25:14,885 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 42 [2021-10-11 02:25:14,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:14,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:25:14,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2021-10-11 02:25:14,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497078111] [2021-10-11 02:25:14,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:14,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:14,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:14,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=46, Unknown=1, NotChecked=0, Total=72 [2021-10-11 02:25:14,899 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2021-10-11 02:25:16,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:16,928 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-10-11 02:25:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:25:16,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2021-10-11 02:25:16,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:16,928 INFO L225 Difference]: With dead ends: 7 [2021-10-11 02:25:16,929 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:25:16,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=30, Invalid=59, Unknown=1, NotChecked=0, Total=90 [2021-10-11 02:25:16,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:25:16,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:25:16,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:25:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:25:16,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-11 02:25:16,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:16,932 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:25:16,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:16,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:25:16,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:25:17,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:25:17,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:25:17,181 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:25:17,181 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 32) the Hoare annotation is: (= (mod (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~j~0) 4294967296) (mod ULTIMATE.start_main_~l~0 4294967296)) [2021-10-11 02:25:17,182 INFO L262 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-11 02:25:17,182 INFO L258 CegarLoopResult]: At program point L9-2(lines 8 13) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-10-11 02:25:17,182 INFO L258 CegarLoopResult]: At program point L34(lines 16 35) the Hoare annotation is: (or (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (and (= ULTIMATE.start_main_~v4~0 0) (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~j~0 0) (= ULTIMATE.start_main_~l~0 0))) [2021-10-11 02:25:17,182 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:25:17,182 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-10-11 02:25:17,183 INFO L262 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2021-10-11 02:25:17,183 INFO L262 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-11 02:25:17,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:17 BoogieIcfgContainer [2021-10-11 02:25:17,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:17,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:17,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:17,198 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:17,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:07" (3/4) ... [2021-10-11 02:25:17,202 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:25:17,211 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-11 02:25:17,211 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:25:17,211 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:17,212 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:17,254 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ffd0754-bb4b-42d8-a89d-ee05d8b852fc/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:17,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:17,256 INFO L168 Benchmark]: Toolchain (without parser) took 10090.32 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 71.1 MB in the beginning and 77.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:17,257 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 107.0 MB. Free memory is still 87.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:17,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.78 ms. Allocated memory is still 107.0 MB. Free memory was 70.9 MB in the beginning and 82.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:17,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.25 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 81.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:17,259 INFO L168 Benchmark]: Boogie Preprocessor took 21.94 ms. Allocated memory is still 107.0 MB. Free memory was 80.7 MB in the beginning and 79.8 MB in the end (delta: 923.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:17,260 INFO L168 Benchmark]: RCFGBuilder took 465.51 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 59.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:17,261 INFO L168 Benchmark]: TraceAbstraction took 9251.49 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 58.8 MB in the beginning and 80.5 MB in the end (delta: -21.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:17,261 INFO L168 Benchmark]: Witness Printer took 57.32 ms. Allocated memory is still 130.0 MB. Free memory was 80.5 MB in the beginning and 77.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:17,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 107.0 MB. Free memory is still 87.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.78 ms. Allocated memory is still 107.0 MB. Free memory was 70.9 MB in the beginning and 82.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.25 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 81.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.94 ms. Allocated memory is still 107.0 MB. Free memory was 80.7 MB in the beginning and 79.8 MB in the end (delta: 923.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 465.51 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 59.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9251.49 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 58.8 MB in the beginning and 80.5 MB in the end (delta: -21.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * Witness Printer took 57.32 ms. Allocated memory is still 130.0 MB. Free memory was 80.5 MB in the beginning and 77.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !(0 == cond) || ((((v4 == 0 && i == 0) && k == 0) && j == 0) && l == 0) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (i + k + v4 + j) % 4294967296 == l % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 12 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 36 HoareAnnotationTreeSize, 3 FomulaSimplifications, 69 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1818 SizeOfPredicates, 6 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...